This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A303246 #4 Apr 20 2018 10:58:40 %S A303246 32,10,494,160,5158,7823,90728,421983,3251872,23282610,175055099, %T A303246 1340813633,10458371398,80508035855,634752883979,4921023633814, %U A303246 38687814219982,301834276228660,2365262885917076,18505872453909054 %N A303246 Number of 6Xn 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. %C A303246 Row 6 of A303242. %H A303246 R. H. Hardin, <a href="/A303246/b303246.txt">Table of n, a(n) for n = 1..210</a> %e A303246 Some solutions for n=5 %e A303246 ..0..0..1..0..0. .0..0..1..0..0. .0..0..1..0..0. .0..0..1..1..1 %e A303246 ..1..0..0..0..1. .1..0..0..0..1. .1..0..0..0..0. .0..0..0..1..0 %e A303246 ..0..0..1..0..1. .1..0..1..0..0. .0..0..1..0..1. .0..0..0..1..1 %e A303246 ..1..0..0..0..0. .0..0..1..0..0. .1..0..1..0..1. .1..1..0..0..1 %e A303246 ..1..0..1..1..1. .0..0..0..0..1. .0..0..1..0..1. .1..1..1..1..1 %e A303246 ..0..0..0..1..1. .1..0..1..0..0. .0..0..1..0..1. .0..1..0..1..0 %Y A303246 Cf. A303242. %K A303246 nonn %O A303246 1,1 %A A303246 _R. H. Hardin_, Apr 20 2018